CN212131224U - Feed screw nut mechanism - Google Patents
Feed screw nut mechanism Download PDFInfo
- Publication number
- CN212131224U CN212131224U CN202020028545.4U CN202020028545U CN212131224U CN 212131224 U CN212131224 U CN 212131224U CN 202020028545 U CN202020028545 U CN 202020028545U CN 212131224 U CN212131224 U CN 212131224U
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- nut
- fixing device
- screw rod
- belt pulley
- connecting portion
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Abstract
The utility model discloses a screw rod nut mechanism, which comprises a screw rod, a nut component in threaded connection with the screw rod, and a driving mechanism which is connected with the nut component and drives the nut component to move axially along the screw rod; the nut assembly comprises a nut sleeved on the screw rod and a fixing device fixedly connected with the nut, and the fixing device is used for installing a machining device; the driving mechanism comprises a belt pulley, a motor and a transmission belt for connecting the belt pulley and the motor; the belt pulley is sleeved on the screw rod and connected with the nut through a plurality of screws, and the motor drives the belt pulley to rotate so as to drive the nut to rotate. By using the mechanism, the nut is ensured to drive the processing device to realize stable operation when the nut operates on the screw rod, and the movement distance of the nut on the screw rod can be accurately controlled.
Description
Technical Field
The utility model relates to a mechanical transmission mechanism especially relates to a screw rod nut mechanism.
Background
The screw rod and nut mechanism is a common transmission mechanism in the mechanical field and is mainly used for converting rotary motion into linear motion. The nut and the load can move correspondingly along the screw rod by driving the nut and the load to rotate through the rotation of the screw rod. In large-scale setting, because the lead screw is longer, and the load is heavier, further drive the motion mode of nut by motor drive lead screw, can make the nut operation unstable to influence the work of load. And when the nut moves on the screw rod, the moving distance of the nut is difficult to control due to the tolerance of parts per se and the like, and the problems of displacement error and the like occur.
Disclosure of Invention
The utility model aims at providing a screw-nut mechanism can realize even running when guaranteeing that the nut drives processingequipment and moves on the lead screw through using this mechanism, and can realize the movement distance of accurate control nut on the lead screw.
In order to achieve the above purpose, the utility model adopts the technical scheme that: the feed screw and nut mechanism comprises a feed screw, a nut assembly in threaded connection with the feed screw, and a driving mechanism which is connected with the nut assembly and drives the nut assembly to move along the axial direction of the feed screw; the nut assembly comprises a nut sleeved on the screw rod and a fixing device fixedly connected with the nut, and the fixing device is used for installing a machining device; the driving mechanism comprises a belt pulley, a motor and a transmission belt for connecting the belt pulley and the motor; the belt pulley is sleeved on the screw rod and connected with the nut through a plurality of screws, and the motor drives the belt pulley to rotate so as to drive the nut to rotate.
In the above technical scheme, the nut is connected with the fixing device through a shaft, the shaft includes a first connecting portion, a second connecting portion and a step connecting the first connecting portion and the second connecting portion, the belt pulley is sleeved on the first connecting portion and connected through the screw, and the second connecting portion is sleeved in the fixing device.
In the above technical solution, the screw-nut mechanism further includes an oil path system, the oil path system includes a first oil hole disposed on the step, an annular groove disposed in the step, and an oil path penetrating through the first connecting portion and communicating with the annular groove.
In the above technical solution, the fixing device includes a first fixing device and a second fixing device connected to the first fixing device; a first through hole is formed in the first fixing device, and the second connecting portion is sleeved in the first through hole.
In the above technical scheme, a second oil filler hole is arranged on the first fixing device, and the second oil filler hole is communicated with the first oil filler hole.
In the technical scheme, one side of the second fixing device, which is far away from the screw rod, is provided with a plurality of motor mounting holes and machining device mounting holes, the motor is connected with the motor mounting holes through screws so as to be fixed on the second fixing device, and the machining device mounting holes are used for fixing the machining device.
In the above technical scheme, the screw rod fixing device further comprises a frame, wherein supports are respectively arranged at two ends of the frame in the extending direction, and the screw rod is fixed in the supports.
In the above technical scheme, a guide rail is arranged on the rack along the extending direction of the rack, the guide rail is matched with the guide rail, a sliding groove is arranged on the second fixing device, and the second fixing device is connected to the guide rail in a sliding manner.
Because of the application of the technical scheme, compared with the prior art, the utility model has the following advantages:
1. the utility model discloses in link to each other nut assembly is direct with actuating mechanism, by actuating mechanism direct drive nut assembly along lead screw axial motion to guarantee that nut assembly drives processingequipment and can even running on the lead screw, and realize accurate control nut assembly's movement distance.
2. The driving mechanism comprises a belt pulley, a motor and a transmission belt for connecting the belt pulley and the motor, the belt pulley is connected with the nut through a plurality of screws, and the belt pulley is driven by the motor to drive the nut assembly to move along the screw rod.
3. The nut is provided with an oil circuit system, the oil circuit system comprises a first oil hole arranged on the step and an annular groove arranged in the step, an oil circuit penetrating through the first connecting part and the annular groove is communicated, a second oil hole is arranged on the first fixing device and communicated with the first oil hole, and lubricating oil is pumped into the second oil hole, so that the second oil hole flows along the oil circuit system, the lubricating effect of the nut is realized, and the working precision and the service life of internal elements are ensured.
Drawings
FIG. 1 is a schematic view of a feed screw and nut mechanism of the present invention;
fig. 2 is an exploded view of the nut assembly and drive mechanism of the present invention;
fig. 3 is a sectional view of the feed screw nut mechanism of the present invention.
Wherein: 1. a screw rod; 2. a nut assembly; 3. a drive mechanism; 4. a nut; 5. a belt pulley; 6. a motor; 7. a drive belt; 8. a first connection portion; 9. a second connecting portion; 10. a step; 11. a first oil filler hole; 12. an annular groove; 13. an oil path; 14. a first fixing device; 15. a second fixing device; 16. a first through hole; 17. a guide rail; 18. a frame; 19. a support; 20. a shaft.
Detailed Description
The invention will be further described with reference to the following drawings and examples:
the first embodiment is as follows: referring to fig. 1 to 3, a feed screw and nut mechanism includes a feed screw 1, a nut assembly 2 in threaded connection with the feed screw 1, and a driving mechanism 3 connected to the nut assembly 2 and driving the nut assembly 2 to move along the axial direction of the feed screw 1; the nut component 2 comprises a nut 4 sleeved on the screw rod 1 and a fixing device fixedly connected with the nut 4, the fixing device is used for installing a machining device, the nut component 2 is directly connected with the driving mechanism 3, the driving mechanism 3 directly drives the nut component 2 to move along the axial direction of the screw rod 1, and therefore the nut component 2 is guaranteed to drive the machining device to stably run on the screw rod 1, and the movement distance of the nut component 2 is accurately controlled.
The driving mechanism 3 comprises a belt pulley 5, a motor 6 and a transmission belt 7 for connecting the belt pulley 5 and the motor 6; the belt pulley 5 is sleeved on the screw rod 1, the belt pulley 5 is connected with the nut 4 through a plurality of screws, the motor 6 drives the belt pulley 5 to rotate so as to drive the nut 4 to rotate, and the belt pulley is simple in structure and convenient to install.
Referring to fig. 2, the nut 4 is connected to the fixing device through a shaft 20, the shaft 20 includes a first connecting portion 8, a second connecting portion 9 and a step 10 connecting the first connecting portion 8 and the second connecting portion 9, the belt pulley 5 is sleeved on the first connecting portion 8 and connected through the screw, and the second connecting portion 9 is sleeved in the fixing device.
In order to ensure the working accuracy and the service life of the internal components, the nut 4 further comprises an oil circuit system, wherein the oil circuit system comprises a first oil filling hole 11 arranged on the step 10, an annular groove 12 arranged in the step 10, and an oil circuit 13 penetrating through the first connecting part 8 and communicated with the annular groove 12, and the first oil filling hole 11 is communicated with the annular groove 12. The fixing device comprises a first fixing device 14 and a second fixing device 15 connected with the first fixing device 14; a first through hole 16 is formed in the first fixing device 14, and the second connecting portion 9 is sleeved in the first through hole 16. A second oil hole is arranged on the first fixing device 14 and communicated with the first oil hole 11. And lubricating oil is injected into the second oil injection hole, so that the lubricating oil lubricates the nut through the oil way system. See fig. 2, 3.
Referring to fig. 1, a plurality of motor mounting holes and machining device mounting holes are formed in one side, away from the screw rod 1, of the second fixing device 15, the motor 6 is connected with the motor mounting holes through screws so as to be fixed on the second fixing device 15, and the machining device mounting holes are used for fixing the machining device.
Referring to fig. 1, the screw rod device further comprises a frame 18, wherein two ends of the frame 18 in the extending direction are respectively provided with a bracket 19, and the screw rod 1 is fixed in the brackets 19. A guide rail 17 is arranged on the frame 18 along the extending direction of the frame 18, the guide rail 17 is matched with the guide rail 17, a sliding groove is arranged on the second fixing device 15, and the second fixing device 15 is connected to the guide rail 17 in a sliding manner. Because the processing device is heavy, in order to further enable the processing device to run stably, the rack 18 is provided with two parallel guide rails 17, and the directions of the slide rails of the two guide rails 17 are perpendicular to each other.
The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose of the embodiments is to enable people skilled in the art to understand the contents of the present invention and to implement the present invention, which cannot limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.
Claims (8)
1. A feed screw nut mechanism which is characterized in that: the driving mechanism is connected with the nut component and drives the nut component to move axially along the screw rod; the nut assembly comprises a nut sleeved on the screw rod and a fixing device fixedly connected with the nut, and the fixing device is used for installing a machining device; the driving mechanism comprises a belt pulley, a motor and a transmission belt for connecting the belt pulley and the motor; the belt pulley is sleeved on the screw rod and connected with the furnace door through a plurality of screws, and the motor drives the belt pulley to rotate so as to drive the nut to rotate.
2. The feed screw nut mechanism of claim 1, wherein: the nut is connected with the fixing device through a shaft, the shaft comprises a first connecting portion, a second connecting portion and a step for connecting the first connecting portion and the second connecting portion, the belt pulley is sleeved on the first connecting portion and connected through the screw, and the second connecting portion is sleeved in the fixing device.
3. The feed screw nut mechanism of claim 2, wherein: the screw rod nut mechanism further comprises an oil circuit system, wherein the oil circuit system comprises a first oil hole arranged on the step, an annular groove arranged in the step, and an oil circuit penetrating through the first connecting part and communicated with the annular groove.
4. The feed screw nut mechanism of claim 3, wherein: the fixing device comprises a first fixing device and a second fixing device connected with the first fixing device; a first through hole is formed in the first fixing device, and the second connecting portion is sleeved in the first through hole.
5. The feed screw nut mechanism of claim 4, wherein: and a second oil hole is formed in the first fixing device and communicated with the first oil hole.
6. The feed screw nut mechanism of claim 4, wherein: one side of the second fixing device, which is far away from the screw rod, is provided with a plurality of motor mounting holes and machining device mounting holes, the motor is connected with the motor mounting holes through screws so as to be fixed on the second fixing device, and the machining device mounting holes are used for fixing the machining device.
7. The feed screw nut mechanism of claim 4, wherein: the lead screw fixing device is characterized by further comprising a rack, wherein supports are arranged at two ends of the rack in the extending direction respectively, and the lead screw is fixed in the supports.
8. The feed screw nut mechanism of claim 7, wherein: the rack is provided with a guide rail along the extending direction of the rack, the guide rail is matched with the guide rail, the second fixing device is provided with a sliding groove, and the second fixing device is connected to the guide rail in a sliding mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020028545.4U CN212131224U (en) | 2020-01-07 | 2020-01-07 | Feed screw nut mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020028545.4U CN212131224U (en) | 2020-01-07 | 2020-01-07 | Feed screw nut mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212131224U true CN212131224U (en) | 2020-12-11 |
Family
ID=73675440
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020028545.4U Active CN212131224U (en) | 2020-01-07 | 2020-01-07 | Feed screw nut mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212131224U (en) |
-
2020
- 2020-01-07 CN CN202020028545.4U patent/CN212131224U/en active Active
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